23026+4245 BU 1147 AB
23h 02m 36.34s +42° 45' 28.1" P.A. 13.00 sep 0.2 mag 5.19,7.70 Sp A3Vn dist. 129.2 pc (421.45 l.y.)
| Coord 2000 |
23026+4245 |
|
Discov num |
BU 1147 |
|
Comp |
AB |
|
Coord arcsec 2000 |
23 02 36.34 +42 45 28.1 |
|
| Date first |
1889 |
|
Date last |
2011 |
|
Obs |
71 |
|
| Pa first |
318 |
|
Pa last |
12.7 |
|
P.A. Now (θ) |
281.9° |
|
| Sep first |
0.3 |
|
Sep last |
0.217 |
|
Sep. Now (ρ) |
0.139" |
|
| Mag pri |
5.19 |
|
Mag sec |
7.70 |
|
delta mag (ΔM) |
2.51 |
|
Spectral class |
A3Vn (white) |
|
| Pri motion ra |
+059 |
|
Sec motion ra |
+059 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-006 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
23026+4245 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
52623 |
23 02 36 +42 45 28 |
BU 1147 AB |
2011 |
71 |
13 |
0.2 |
5.19 |
7.70 |
2.51 |
Y |
<=== |
| Show |
|
52623 |
23 02 36 +42 45 28 |
BU 1147 AB,C |
2002 |
5 |
195 |
91.0 |
5.11 |
13.70 |
8.59 |
|
|
| Show |
NSV14396 And |
52623 |
23 02 36 +42 45 28 |
LYS 25 AB,D |
2002 |
5 |
284 |
143.1 |
5.11 |
12.00 |
6.89 |
|
|
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
NSV14396 And |
|
Constellation |
Andromeda |
|
SAO |
52623 |
|
HIP |
113788 |
|
| Tycho2 |
3224-03432-1 |
|
Gaia DR2 |
1931392955600422016 |
|
HD |
217782 |
|
HR |
8766 |
|
| GC |
32110 |
|
ADS |
16467 |
|
GL |
Gl 886.1A |
|
BD |
BD+41 4665 |
|
| Flamsteed |
2 Andromedae |
|
Flamsteed name |
2 And |
|
Distance |
129.2 |
|
Distance ly |
421.45 |
|
ORBITAL ELEMENTS
| Period (P) | 73.997y | ± 0.509 |
Periastron (T) | 1870.28y | ± 0.595 |
Semi-major axis (a) | 0.225a | ± 0.011 |
| Eccentricity (e) | 0.8 | ± 0.056 |
Inclination (i) | 21.7° | ± 46 |
Longitude of periastron (ω) | 356.4° | ± 3 |
| Node (Ω) | 159.5° | ± 2 |
Notes | n | |
Reference | FMR2010f | |
| Equinox | 2000 | |
Last observation | 2003 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
354.1 |
0.329 |
| 2001 |
355.4 |
0.320 |
| 2002 |
356.8 |
0.311 |
| 2003 |
358.3 |
0.300 |
| 2004 |
359.9 |
0.290 |
| 2005 |
1.6 |
0.278 |
| 2006 |
3.4 |
0.266 |
| 2007 |
5.5 |
0.252 |
| 2008 |
7.7 |
0.238 |
| 2009 |
10.3 |
0.223 |
| 2010 |
13.3 |
0.207 |
| 2011 |
16.8 |
0.190 |
| 2012 |
21.0 |
0.172 |
| 2013 |
26.2 |
0.152 |
| 2014 |
33.1 |
0.131 |
| 2015 |
42.8 |
0.108 |
| 2016 |
58.0 |
0.084 |
| 2017 |
85.4 |
0.060 |
| 2018 |
137.7 |
0.046 |
| 2019 |
201.4 |
0.051 |
| 2020 |
240.5 |
0.071 |
| 2021 |
261.1 |
0.094 |
| 2022 |
273.5 |
0.117 |
| 2023 |
281.9 |
0.139 |
| 2024 |
288.1 |
0.160 |
| 2025 |
292.9 |
0.179 |
| 2026 |
296.8 |
0.196 |
| 2027 |
300.1 |
0.213 |
| 2028 |
302.9 |
0.228 |
| 2029 |
305.4 |
0.243 |
| 2030 |
307.6 |
0.256 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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